Prof. Vasudha Bhatnagar has keen interest in Intelligent Data Analysis. She is particularly interested in developing process models for Knowledge Discovery in Databases and data mining algorithms, modeling of changes in discovered knowledge in evolving (streaming) data sets, projected clustering, outlier detection, classification and clustering ensembles. Prof. Bhatnagar is currently working on the problem of pruning of classification ensembles. She is also looking into data analyses in astronomy and bio-informatics applications.